The Forgotten Pool is a completely submerged cavern located within Blackfathom Deeps. It is the location of Old Serra'kis, and can be accessed by swimming past the Moonshrine Ruins. The pool is a dead-end, and is only used to battle its boss.

v • d • e Subzones of Blackfathom Deeps Aku'mai's Lair · The Drowned Sacellum · The Forgotten Pool · Moonshrine Ruins · Moonshrine Sanctum · The Pool of Ask'ar